Avoltage of 12 cos(i000t+45) vis applied to a circuit in which a resistor of 4 .n, aninductor of l h, and a capacitor of 100 μf are connected in series. if the current in the circuit is in phase with the voltage, find the value of l

0.01 H

Explanation:

V = 12 cos (1000t + 45)

C = 100 micro farad

Let the inductance be L .

When the current and the voltage are in the same phase so it is the condition of resonance.

So capacitive reactance = inductive reactance

Xc = XL

1/ωC = ωL

L = 1 / ω²C

By comparisonV = Vo Cos (ωt + Ф)

ω = 1000 rad/s

L = 1 / (1000 x 1000 x 100 x 10^-6)

L = 1 / 100

L = 0.01H

thus, the inductance of the inductor is 0.01 H.

learn it on the intertant so you can solve

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